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power chain saw

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A mechanical tool used to fell trees or cut wood using a loop of chain that is driven around a bar by a motorized power head. The chain of a power saw is comprised of links that have alternating "teeth" that, when properly sharpened, bite through wood and other substances one small piece at a time. Depending on the size of the bar, the length of chain necessary to run around the bar in a loop, and the size of the power head, the power chain saw can work much more effectively and efficiently than crosscut saws, axes, and other felling tools.

Photo Credit:

"Man using a chain saw with safety gear" by Hustvedt is licensed under CC BY-SA.